Material: carbon steel Surface treatments: plain, black, zinc-plated (ZP), yellow zinc-plated (YZP), hot-dipped galvanizing (HDG), dacromet, nickel- and brass-plating Grade: A325M 8S Standard: ASTM Thread: UNC Sizes: 1/2 to 1 1/2-inch Packing: small box/carton, bulk cartons/pallet and gunny bag Competitive Advantages 1). Top Quality control 2). Competitive Price 3). Various of Design 4). OEM Accepted 5). Customer's Design and Logo are Welcome